基于因子分析方法，对天津市51家制造企业的信息化状况进行定量的综合评价，并采用聚类分析方法对评价结果进行了分类，找出了各类企业的优势和不足，为企业信息化工作的开展提供了科学依据。

Using the factor analysis approach, the paper makes quantitative analysis and comprehensive evaluation of the 51 manufacturing enterprises in Tianjin in terms of informatizatton. Then, the method of cluster analysis is adopted to classify enterprises in order to find out their advantages and disadvantages, and to provide a scientific basis for the informatization development in manufacturing enterprises.